As 'Glee' Season 6 gears up to air and close out the series, the title and some spoilers about Episode 4 have surfaced. "The Hurt Locker" will feature a possible engagement, Sue's shenanigans, and singing group New Directions' new leader.

Episode 4, "The Hurt Locker," revolves around sinister Principal Sue Sylvester (Jane Lynch) and her mischievous plans. Sue is rumored to be up to no good again this season, with several crazy stunts all schemed up.

Sue will reportedly invite Vocal Adrenaline and the Warblers at McKinley High for a rehearsal to break the spirit of the New Directions.

Rachel will supposedly assume the role of New Directions' leader and find support from glee club coach Will Schuester (Matthew Morrison) to throw away the invitational so that the glee club will not be discouraged.

Sue would allegedly "hypnotize" Sam to woo Rachel, leading to a kiss between the two. Rachel would ask out Sam on a date, but he refuses, stating that he was "in a trance" at that time and that he is still loves Mercedes, according to MJS Big Blog.

Aside from that, Sue is reportedly unhappy that "Klaine" duo, Kurt (Chris Colfer) and Blaine (Darren Criss) broke up and will devise a plan to bring the two back together.

Meanwhile, fans of "Brittana" (Brittany and Santana) will surely watch out for the upcoming season of "Glee" as rumors are circling the Internet that Santana Lopez (Naya Rivera) will take her relationship with her girlfriend, Brittany Pierce (Heather Morris) to the next level by finally proposing to her.

Excitement rose when Rivera posted a tweet on Oct. 6 saying, "Popping a very important question today at glee! ;-)," implying that Santana might indeed propose to Brittany.

"Brittana" went on a roller-coaster ride last season and fans hope that the proposal happens in the place where Santana first confessed her love to the Cheerios cheerleader, near one of McKinley High's lockers.

'Glee' Season 6 is slated to air January 2015.